Patents by Inventor Ronald Arthur Durno

Ronald Arthur Durno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Analog mixer to vary helicopter rotor phase angle in flight
    Patent number: 4027999
    Abstract: An analog mixer for a helicopter rotor control system mounted for tilting motion about a variable tilt axis and connected to the rotor control swashplate to cause synchronous tilting and including means to impart tilt generating control inputs to the analog mixer, and means to vary the position of the analog mixer tilt axis as a function of helicopter speed to thereby vary the phase angle of the helicopter rotor without imparting control inputs to the rotor control swashplate.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: June 7, 1977
    Assignee: United Technologies Corporation
    Inventor: Ronald Arthur Durno